Oiler.



G. W. PALMER.

OILER.

APPLIGATI'ON FILED DEC. 17, 1910.

Patented Nov. 12,1912.

WITNESSES:

ATTORNEY UNITED STATES FATE GEORGE W. PALMERLOE DULUrH, MINNESOTA.

1 OILEB.

oaaees.

I Specification of Letters Patent.

Patented Na r2, i912.

Application filed December 17,1910. Serial No. 597,901.

f all whom it may concern:

Be it known that I, GEORGE W. PALMER, a citizen of the United States,residing at Duluth, in the county of St. Louis and State of Minnesota,have invented certain new and oil can be properly fed to thezdie at the.

proper vplaeewithout stopping the threading operation and. thus savingtime and preventing injury to the work and tool for the-wantof oiling. jI Anotherobject of my invention is to provide an oiler at all timescarried by the tool and having certain details hereinafter fully setforth.

In the accompanying drawings: Figure 1 is an elevation of my improvedoiling handle applied" to a die-stock. Fig. 2 is a longitudi-v nalcross-sectional view of the handle, and Fig. 8 is. a cross-sectionalview takenon the line A B Fig. 2.

Referring now to the drawings, l iepre sents the hollow metal handle ofa die stock which 'is'screwed into the stock as indicated at 1, and inwhich is formed theoil-chamber 2 by the two partitions 3 and 4, accessbeing had to said chamber for filling or emptying through a suitablescrew-cap covered hole'5;

A piston 6 having the rod 7 is operatively mounted through the partition3, and rod 7 operating through the artition 4 in which latter a tightjoint is e ected by means of a screw-threaded. stufiing gland 8 havingradial holes 9 in the upper end-thereof for the purpose of receiving atool for rotating it and adjusting it up or down.

The lower end ofthe portion 6 is somewhat conically shaped forming thebeveled surfacelO, which engages a similarly shaped seat-in the lowersurfaceof the-partition 3.

About the base of the conical portion of the piston is carried acircular washer 11 to act as an additional valve seat and engages therim of the seat formed in the lower surface of the partition 3, thus atight joint is insured between the partition and the piston, when thelatter is in its uppermost position.

A plurality of longitudinal ports 12 are the desired formed in the outersurface-of the piston 6 which are sufficiently long to extend somewhatabove theupper surface of the partition 3, and within the oil chamber 2,when the piston is. upwhich will allow the ports to readily fill withoil therefrom and then when the piston is lowered the communi cation(with the chamber 2 will be closed and,

the oil in the ports 12 allowed to dischar e within the kchamber 13formed between t e end of the handle and the dished washer 14.,

within ,the stock 15 and upon which the handle .1 is. tightly screwed. Afeed dpipe s to -16 is attached to the washer 14 and lea place ofdischarge over] the die 17.

A finger button 18 is attached "the upper 'end of the piston 7, by whichthe.

latter is depressed when desired" and the spiral spring 19' isinterposed between the. button 18 andthe upper end of the gland 8,whereby the plston and rod are retained normall-y at their upwardextremity. The piston rod 7 is made hollow a large portion of its lengthfrom the upper end forming the hole 20 therein and just below the button18 is the lateral hole 21 through the side of the piston rod 7, andcommunicating with the hole 20 and a similar lateral hole 22. is formedin the side of the rod 7, at a point just above the upper end of thechamber 2, when the piston and rod are up. Normally thechamber 2 issealed, but when the piston and rod are depressed the oil is dischargedfrom the ports 12 {and air admitted above the oil inthe chamber2,'through the holes 22, 20 and 21 so that a vacuum is not formed in'thechamber 2 by the discharging of the oil. v

The hole 20 extends considerably below thelateral hole 22'to provide forthe collection of dust or dirt without plugging the communicationbetween the outer air'and the chamber, and extends up through the end ofthe rod 7 to admit of readily cleaning with a wire or the "like. Theupper end of the handle 1 is cut away as at 23 for."

convenient access to the button 18 and the operation of the device. p I

Having thus described my lnvention, what I claim and desire to secure byLetters Patent is:

1. The combination with'a die-stock, (if a hollow handle for operatingthe stock and in communication with the dies carried by the stock, anoil containing receptacle end of the piston rod having an openingvextending longitudinally therethrough and having a lateral openingcommunicating therewith and normally above the upper end of the oilreceptacle, whereby upon the downward movement of the piston-rod to feedthe oil to the die the upper end of the.

receptacle is in communication with the outside atmosphere.

2. The combination with a die stock, of

a hollow handle removably secured in said stockand in communication.with the dies carried by" the stock, a receptacle formed in said hollowhandle and having a contracted lower end, a piston controllingsaidcontracted lower end, a piston rod carried by.

the piston and extending out through the upper end of the receptacle andhaving operatin means carried by its upper end on the,

outslde of the receptacle, said piston rod having an opening extendinglongitudinally of its length and having a lateral opening communicatingtherewith, which is norv mally above the upper endof the receptacle,substantially as shown and described.

3. The combination with a die stock, of

a hollow handle removably secured in said stock, a receptacle formed insaidhandle and having a contracted lower end, the lower face of saidcontracted end being beveled to form a vseat, 'a piston passing throughthe contracted end of the receptacle and closing the same and having abeveled lower end to rest upon the said outer face of the said pistonhaving longitudinal grooves, the lower ends of which areabove the lowerend of the receptacle and the upper ends in communication with thereceptacle, and means for forcing the piston downwardly whereby thelower ends of the grooves are brought into communication with the diesand the upper ends out of communication with the receptacle, whereby apredetermined amount of oil is fed to the dies.

4. Thecombination with a die-stock havmg handle receiving socketsinternally screw-threaded and in communication with the dies, a plateresting in said sockets and the conically shaped plate therein, areceptacle formed'in the handle for containing oil and means for feedinga predetermined amount of oil from the receptacle to the said conicallyshaped plate. v

5. The combination with a die stock having handle receivingsockets incommunication with the dies, a hollow handle screwed into said sockets,an oil containing receptacle formed in 'said handle, a piston within thehandle and controlling the communication-between the oil-receivingreceptacle and the dies, a piston stem carried by the piston andextending out through the upper end of the receptacle, a springsurrounding said stem and normally holding the piston rod in its upwardposition, said iston having "grooves in its outer face whlch, when thepiston is in its upward position, are in communication with thereceptacle, the upper end of the valve stem having a longitudinalopening through a portion thereof, said stem having a lateral openingcommunicating therewithand above the receptacle when the piston is inits upward. position, whereby a predetermined amount of oil is fed tothe dies upon the downward movement of the piston rod and air is fed tothe upper end of the receptacle above the oil.

In testimony whereof. I hereunto afiix my signature in the presence oftwo witnesses. GEORGE WV. PALMER. Witnesses:

WM. M. GBAVATT, S. GEo. STEVENS.

